174 Transactions.— Zoology. 
from Aora typica, is, however, so very like Microdentopus maculatus in every 
part except the gnathopoda that I have little doubt that it, and not dora 
typica, is really the male. This is also confirmed by the fact that the two 
were found together. 
DESCRIPTION OF PLATE VIII. 
Fig. 1. Hymenicus marmoratus. / 
a. Third (external) maxillipede x 22. 
b. Second maxillipede x 22. 
e. Abdomen of male x 5. 
Fig. 2. Anthura (?) flagellata. 
a. Antenne x 22. 
b. Third thoracic leg x 22. 
ce. Sixth thoracic leg x 29. 
d. Abdomen and telson x 22. 
Fig. 3. Microdentopus maculatus. 
a. First gnathopod of male x 22. 
b. Second gnathopod of male x 22, 
Art, XXV.—On some Subterranean Crustaeea. By Cuaries CHILTon, B.A. 
[Read before the Philosophical Institute of Canterbury, 3rd November, 1881.] 
Plates IX. and X. 
THe existence of blind Amphipodous Crustacea in wells and caves of 
England and Europe, has been long known ; in this paper I record the 
existence of similar animals in New Zealand. The Crustacea which form 
the subject of this paper were obtained from a well at Eyreton, about six 
miles from Kaiapoi, North Canterbury. The well was made about seve 
teen years ago, it is not more than twenty-five feet deep, and it is fitted 
with a common suction pump, through the medium of which these interest 
ing animals were obtained. 
From this well I got three species of Amphipoda and one of Isopods. 
In none of these have I seen any trace of eyes, though I have examin 
living as well as preserved specimens. The most interesting species is the 
Isopod ; ‘the only other blind Isopod inhabiting wells or caves that I know 
of is the genus Cecidolea, a species of which is found in the Mammoth Ca 
of Kentucky, and another in the Wyandotte Cave.* 2 
* See “ Nature,” 1872, pp. 11, 445, and 484. 
